Finding the Fourth Proportional to 502,440.68, 753,771.74 and 278,128.28
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Solution
The fourth proportional to 502,440.68, 753,771.74 and 278,128.28 is: 417,253.71
Step by Step Solution
- Step 1: Write the proportion equation
502,440.68 : 753,771.74 = 278,128.28 : x - Step 2: Convert to fraction form
502,440.68/753,771.74 = 278,128.28/x - Step 3: Cross multiply
502,440.68x = 753,771.74 × 278,128.28 - Step 4: Simplify right side
502,440.68x = 209,645,237,558.81 - Step 5: Solve for x
x = 209,645,237,558.81/502,440.68 - Step 6: Final answer
x = 417,253.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.